ADL5331 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

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Part No

ADL5331
Manufacturer

ADI
ChipWorker Part#

CW389480561
Description

1MHz to 1.2GHz VGA with 30dB Gain Control Range
Documentation

Datasheet
Ships from

Moscow
Наличие

In Stock
Estimated Price

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ADL5331 Specifications

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Attribute	Attribute Value

Part Number	ADL5331
Manufacturer	ADI
ChipWorker Part#	CW389480561
Documentation	Datasheet
	expand all
Product Lifecycle Status	Recommended for New Designs
RoHS	RoHS Compliant

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Product Description

Product Details
The ADL5331 is a high performance, voltage-controlled variable gain amplifier/attenuator for use in applications with frequencies up to 1.2 GHz. The balanced structure of the signal path maximizes signal swing, eliminates common-mode noise and minimizes distortion while it also reduces the risk of spurious feed-forward at low gains and high frequencies caused by parasitic coupling.
The 50 Ω differential input system converts the applied differential voltage at INHI and INLO to a pair of differential currents with high linearity and good common-mode rejection. The signal currents are then applied to a proprietary voltage- controlled attenuator providing precise definition of the overall gain under the control of the linear-in-dB interface. The GAIN pin accepts a voltage from 0 V at a minimum gain to 1.4 V at a full gain with a 40 mV/dB scaling factor over most of the range.
The output of the high accuracy wideband attenuator is applied to a differential transimpedance output stage. The output stage provides a differential output at OPHI and OPLO, which must be pulled up to the supply with RF chokes or a center-tapped balun.
The ADL5331 consumes 240 mA of current including the output pins and operates off a single supply ranging from 4.75 V to 5.25 V. A power-down function is provided by applying a logic low input on the ENBL pin. The current consumption in power-down mode is 250 μA.
The ADL5331 is fabricated on an Analog Devices, Inc., proprietary high performance, complementary bipolar IC process. The ADL5331 is available in a 24-lead (4 mm × 4 mm), Pb-free LFCSP package and is specified for operation from ambient temperatures of −40°C to +85°C. An evaluation board is also available.
**Applications**
Transmit and receive power control at RF and IF
CATV distribution
### Features and Benefits
Voltage-controlled amplifier/attenuator
Operating frequency: 1 MHz to 1.2 GHz
Optimized for controlling output power
High linearity: OIP3 47 dBm @ 100 MHz
Output noise floor: −149 dBm/Hz @ maximum gain
Input impedance: 50 Ω
Output impedance: 20 Ω
Wide gain-control range: 30 dB
Linear-in-dB gain control function: 40 mV/dB
Single-supply voltage: 4.75 V to 5.25 V

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